Filtrete Furnace Filter Adapter – 14.17-in W X 24.02-in H X 12.20-in D

This Filtrete furnace filter adapter will make your filter selection easier! You can now easily convert any 2, 3, 4, or 5-inch furnace bay to a 1-inch furnace filter bay. It will help you save money and provide more filtration options. This Filtrete furnace filter adapter uses strong earth magnets, which are included in the package, to hold the adapter and filter in place. It is thus very easy to install. Once assembled, it has a width of 14.17 in., a height of 24.02 in., and a depth of 12.20 in.